The area gnasharim ravaged lands (something like that) has orcs that spawn which all place multiple traps down, "stacking" them ontop of each other. These traps are often left by their lonesome through many NPC spawn cycles as players come and go from the area, causing 10+ traps to be stacked in the same spot all ontop of each other. Eventually someone will just waltz over them and explode.
This extends to all creatures that set traps (ettercap trappers, sahaugin raiders) often stack 2 damage traps ontop of each other. Ring 95 can be burdened by the similiar "Trap stacking" problem as gnasharim.
Fixed for Gnasharim.